Hertfordshire · Grease filter exchange

Grease filter exchange in Newnham, Hertfordshire

Professional grease filter exchange in and around Newnham, timed so the site keeps working and finished with a written report and photos.

  • Blocked baffle filters
  • Damaged filters letting grease past
  • Smoke and heat lingering under the hood

Grease filter exchange for sites in Newnham

Grease filter exchange in Newnham, done properly

An exchange visit in Newnham does not take long. The greasy filters come out, clean ones go in, and we check they’re seated with no gaps. If something looks wrong, we tell you. We are often asked to deal with a canopy that drips grease and filters left unwashed on busy weeks, across island canopies, restaurants and pubs and wall canopies.

Work in a small place like Newnham starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.

A written report with pictures follows each visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.

Duct Doctor duct and vent cleaning vans lined up in a car park with the team
Place
Newnham (SG7)
Region
Hertfordshire
Paperwork
Photo report after every visit
Quote
A fixed quote up front
When we work
After hours by arrangement; emergencies any time
Telephone
0345 646 2711
Checked
30 October 2026

When it’s something else

Before booking, it helps to know what’s not included:

  • Grease behind the filters that a swap cannot remove
  • A canopy that doesn’t capture the vapour properly
  • Grease deep in the extract system

Not sure which it is? You can phone us on 0345 646 2711 or drop us a line and we will tell you honestly before booking.

What the work covers

  • Baffle filters
  • School and hospital kitchens
  • Mesh filters
  • Wall canopies
  • Restaurants and pubs
  • Island canopies

Multi-site and managed buildings

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.

Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party and send the paperwork to whoever needs it.

Kitchen extracts in Newnham

The FSA’s food hygiene register shows about 5 cafés, restaurants and staff canteens and about 8 takeaways across Newnham and its immediate surroundings (about a mile and a half). Clogged filters slow the airflow, and busy kitchens like these clog them fast. Newnham is covered by Hertfordshire Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract. Environmental health officers from North Hertfordshire council inspect food businesses in Newnham. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after photos from each clean are a simple way to show the extract is in hand.

If you look after a school kitchen, at a school such as The Knights Templar School or anywhere near Newnham, the holidays are the usual time for a TR19® clean. Volunteers running a hall kitchen near Church of St Vincent, or anywhere in Newnham, may not know when the extract was last cleaned, and a grease test settles it.

Newnham is about 3 miles north-east of Letchworth, in Hertfordshire. Whatever kind of site you run in Newnham, we can take on grease filter exchange. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. Milton Keynes is in our area too, about 25 miles from Newnham.

Here we cover the SG7 postcode area for grease filter exchange. Grease filter exchange is available to premises on Ashwell Road and Caldecote Road and nearby roads. Other places close to Newnham include Caldecote (1 mile north-west), Bygrave (2 miles south-east), Ashwell End (2 miles north), Bury End (2 miles north) and Ashwell (2 miles north-east). We also work in nearby towns such as Stevenage (8 miles south), Welwyn Garden City (15 miles south), Hitchin (6 miles south-west), Letchworth (4 miles south-west), Letchworth Garden City (4 miles south-west) and Benslow (6 miles south-west).

Around Newnham

The nearest railway station is Baldock station, roughly 2 miles south. A little further out are Bygrave House (1.5 miles south-east) and Fairfield Hospital (3 miles south-west). For a walk, there’s Arlesey Old Moat and Glebe Meadows.

Map of Newnham © OpenStreetMap contributors

In-house cleaning or a specialist?

Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. That’s our job.

In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.

What happens on the day

The first job on site is protection: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. The work on site takes anything from a few minutes to an hour or so, depending on the number of filters, and we clear up before we go. Pictures of the system and its access let us plan the work in Newnham before we set off.

  1. We look at the canopies and the condition of the filters.
  2. We note any filters that are bent, damaged or missing.
  3. Greasy filters are swapped for clean ones.
  4. We check the filters are seated and the canopy is ready to use.
  5. Anything that needs attention, such as a greasy plenum, is pointed out.

Getting ready for the visit

  • Tell us the best time to work, such as after service or at a weekend
  • Mention any locked doors, roof access or ceiling voids
  • Arrange a key holder or contact on site

How to get a quote

Quotes are quick. Send a few details and photos, and we usually reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.

Get a price

Related advice

What happens if it’s left?

Grease dripping from the canopy is a sign the filters can’t hold any more. Drips land on surfaces and equipment below, which an EHO may well notice. Planning a trip to Newnham ahead is easier for everyone than a rushed one.

What you pay depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before any work starts, so you know where you stand.

What you get with us

  • Fixed quotes, typically within one working day
  • Every job surveyed first
  • A single point of contact for sites across the South East and London
  • Fully insured

Take a look at what affects the cost and our accreditations.

Newnham: your questions answered

Do you work at weekends in Newnham?

Yes. We work evenings, overnight and at weekends. That way a site in Newnham does not have to lose a day’s trading. Your opening times are the first thing we ask for.

Who carries out food hygiene inspections in Newnham?

Kitchens in Newnham are inspected by North Hertfordshire council’s environmental health officers. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.

What happens if you cannot reach some of it?

They’re listed in the report, never skipped quietly. You’ll know exactly which parts weren’t reached and why, along with a quote to put access in.

Where does the waste go?

Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.

Do you cover Newnham?

Yes. Our technicians work in Newnham, within the South East and London area we cover.

Will I get paperwork for my records?

Yes, always. The report is dated and includes photos, plus a certificate via the BESCA Vent Hygiene Elite portal for TR19® Grease cleans. Keep it in your maintenance log.

Do you take the used filters away?

We do. Used filters go with us to be cleaned while a clean set goes in.

Do you survey before quoting?

Yes, always. We diagnose before we treat: the survey shows what needs doing and what access we need, and the quote is based on that.

Aftercare tips

Think of this as the after-treatment advice, in brief:

  • Book full TR19 cleans alongside filter changes
  • Report a dripping canopy early
  • Keep canopy surfaces wiped down
  • Mention it if the kitchen gets busier

Fresh filters improve airflow at the canopy from the moment they’re fitted. Always run the extract during cooking so they catch grease as intended.

Filter exchange and TR19 cleaning work best together. Setting both up on a schedule keeps everything on track.

When to call us in Newnham

Long cooking hours in Newnham or anywhere else mean more grease on the filters. Heavy daily use means fast build-up so changes need to come round sooner.

What we’re most often called out for:

  • Drips falling from the filters onto equipment
  • Filters left unwashed on busy weeks
  • Weak extraction at the canopy
  • Filters that come out of the sink still dirty

If you run catering at a healthcare site, such as a hospital like Fairfield Hospital about 3 miles south-west, the extract may need cleaning more often than a part-time kitchen.

Questions to ask before you book

  • What hours they’ll be on site
  • If the quote is a fixed price or an estimate
  • When the next visit should be, and why
  • What happens if part of the system cannot be accessed

How to choose an extract cleaning contractor

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London